The traffic flow rate past a certain point on a highway is q(t)=1200+2000t−300t^2 where t is in hours and t=0 is 8 am. how many cars pass by during the time interval from 8 to 11 am?

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )